#!/usr/bin/env php
<?php 
/**
 * Jaxl (Jabber XMPP Library)
 *
 * Copyright (c) 2009-2012, Abhinav Singh <me@abhinavsingh.com>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 *
 * * Neither the name of Abhinav Singh nor the names of his
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */

$params = $argv;
$exe = array_shift($params);
$command = array_shift($params);

require_once 'jaxl.php';
JAXLLogger::$level = JAXL_INFO;

// TODO: an abstract JAXLCtlCommand class
// with seperate class per command
// a mechanism to register new commands
class JAXLCtl {
	
	protected $ipc = null;
	
	protected $buffer = '';
	protected $buffer_cb = null;
	protected $cli = null;
	public $dots = "....... ";
	
	protected $symbols = array();
	
	public function __construct($command, $params) {
		global $exe;
		
		if(method_exists(&$this, $command)) {
			$r = call_user_func_array(array(&$this, $command), $params);
			if(sizeof($r) == 2) {
				list($buffer_cb, $quit_cb) = $r;
				$this->buffer_cb = $buffer_cb;
				$this->cli = new JAXLCli(array(&$this, 'on_terminal_input'), $quit_cb);
				$this->run();
			}
			else {
				_colorize("oops! internal command error", JAXL_ERROR);
				exit;
			}
		}
		else {
			_colorize("error: invalid command '$command' received", JAXL_ERROR);
			_colorize("type '$exe help' for list of available commands", JAXL_NOTICE);
			exit;
		}
	}
	
	public function run() {
		JAXLCli::prompt();
		JAXLLoop::run();
	}
	
	public function on_terminal_input($raw) {
		$raw = trim($raw);
		$last = substr($raw, -1, 1);
		
		if($last == ";") {
			// dispatch to buffer callback
			call_user_func($this->buffer_cb, $this->buffer.$raw);
			$this->buffer = '';
		}
		else if($last == '\\') {
			$this->buffer .= substr($raw, 0, -1);
			echo $this->dots;
		}
		else {
			// buffer command
			$this->buffer .= $raw."; ";
			echo $this->dots;
		}
	}
	
	public static function print_help() {
		global $exe;
		_colorize("Usage: $exe command [options...]\n", JAXL_INFO);
		_colorize("Commands:", JAXL_NOTICE);
		_colorize("    help      This help text", JAXL_DEBUG);
		_colorize("    debug     Attach a debug console to a running JAXL daemon", JAXL_DEBUG);
		_colorize("    shell     Open up Jaxl shell emulator", JAXL_DEBUG);
		echo "\n";
	}
	
	protected function help() {
		JAXLCtl::print_help();
		exit;
	}
	
	//
	// shell command
	//
	
	protected function shell() {
		return array(array(&$this, 'on_shell_input'), array(&$this, 'on_shell_quit'));
	}
	
	private function _eval($raw, $symbols) {
		extract($symbols);
		
		eval($raw);
		$g = get_defined_vars();
		
		unset($g['raw']);
		unset($g['symbols']);
		return $g;
	}
	
	public function on_shell_input($raw) {
		$this->symbols = $this->_eval($raw, $this->symbols);
		JAXLCli::prompt();
	}
	
	public function on_shell_quit() {
		exit;
	}
	
	//
	// debug command
	//
	
	protected function debug($sock_path) {
		$this->ipc = new JAXLSocketClient();
		$this->ipc->set_callback(array(&$this, 'on_debug_response'));
		$this->ipc->connect('unix://'.$sock_path);
		return array(array(&$this, 'on_debug_input'), array(&$this, 'on_debug_quit'));
	}
	
	public function on_debug_response($raw) {
		$ret = unserialize($raw);
		print_r($ret);
		echo "\n";
		JAXLCli::prompt();
	}
	
	public function on_debug_input($raw) {
		$this->ipc->send($this->buffer.$raw);
	}
	
	public function on_debug_quit() {
		$this->ipc->disconnect();
		exit;
	}
	
}

// we atleast need a command argument
if($argc < 2) {
	JAXLCtl::print_help();
	exit;
}

$ctl = new JAXLCtl($command, $params);
echo "done\n";

?>
